High purity Gallium,Indium,cadmium,Bismuth,Bismuth oxide , Sulfur, Phosphrous, Tellurium Oxide (TeO2) CZT(CAdmium-Zinc-Telluride), Cadmium Sulfide(CdS), Cadmium Teluride(CdTe). please refer to or, contact directly Mr. Sheldon Woo Fax:0086-28-85184110